Office for Metropolitan Architecture (OMA) has designed a mixed-used development – De Rotterdam ‘Vertical City’ located in Rotterdam, Netherlands, with approximately 155.000 m² floor area and 150 meters high, scheduled to be completed in 2011. Part of an effort to regenerate the Kop van Zuid area of Rotterdam, these three multifunctional towers will feature space for corporate offices, residential apartments, a hotel (congress, restaurants, retail) public program and parking – creating a bustling vertical city that is active 24 hours a day.